YSC Scope (Model YSC-70, YSC-130 and YSC-7014) with integrated LED lighting and camera are ideal for BGA, CSP and QFP inspection. Interchangeable 90 degree horizontal viewing prism tips from 0.5 mm to 2.0 mm size can be used for various stand off hei
Automatic Desktop Pick and Place Machine TP300V Video Link: https://yadi.sk/i/YIIYwAxYcMaLn
Electronics Forum | Wed Dec 05 17:44:25 EST 2001 | LloydG
we are in the process of design, plan to use a 0.5 mm pitch BGA. does someone has a recommended footprints. thx!
Electronics Forum | Mon May 18 08:59:41 EDT 2009 | ozgurv
Dear All, Does anyone on the forum have experience with underfilling process of bga? We have a component with 0.5mm bga on one of the new products. Customer wants this component to have an underfill. Questions - 1) which kind of epoxy or chemica
Used SMT Equipment | Flexible Mounters
Product Name: Samsung chip mounter CP45FV04 Product number: CP45FV04 Detailed product introduction Item: NEO CP45F/FV Visual Fly Vision (Vision+Stage) Mounting speed: Chip max speed IPC9580, 14900CPH 0.178sec/chip (1608); IC flying camera 0.75s
Used SMT Equipment | Pick and Place/Feeders
Product Name: Samsung CP45FV-NEO multi-function chip mounter Product number: CP45FV-NEO Detailed product introduction Samsung CP45FV-NEO multi-function chip mounter Item: NEO CP45F/FV Visual Fly Vision (Vision+Stage) Mounting speed: Chip max sp
Parts & Supplies | Repair/Rework
main features The full-automatic BGA Ball Mounting machine PG-FA6800 is composed of IPC control system, high-speed 12 axis motion control system, high definition Vision inspection system, convenient operation system, and automatic orientation contr
Parts & Supplies | Repair/Rework
main features The full-automatic BGA Ball Mounting machine PG-FA6800 is composed of IPC control system, high-speed 12 axis motion control system, high definition Vision inspection system, convenient operation system, and automatic orientation contr
Technical Library | 2015-08-20 15:18:38.0
Increasing system integration and component densities continue to significantly reduce the opportunity to access nets using standard test points. Over time the size of test points has been drastically reduced (as small as 0.5 mm in diameter) but current product design parameters have created space and access limitations that remove even the option for these test points. Many high speed signal lines have now been restricted to inner layers only. Where surface traces are still available for access, bead probe technology is an option that reduces test point space requirements as well as their effects on high speed nets and distributes mechanical loading away from BGA footprints enabling test access and reducing the risk of mechanical defects associated with the concentration of ICT spring forces under BGA devices. Building on Celestica's previous work characterizing contact resistance associated with Pr-free compatible surface finishes and process chemistry; this paper will describe experimentation to define a robust process window for the implementation of bead probe and similar bump technology that is compatible with standard Pb-free assembly processes. Test Vehicle assembly process, test methods and "Design of Experiments" will be described. Bead Probe formation and deformation under use will also be presented along with selected results.
Technical Library | 2020-10-27 02:07:31.0
For companies that choose to take the Pb-free exemption under the European Union's RoHS Directive and continue to manufacture tin-lead (Sn-Pb) electronic products, there is a growing concern about the lack of Sn-Pb ball grid array (BGA) components. Many companies are compelled to use the Pb-free Sn-Ag-Cu (SAC) BGA components in a Sn-Pb process, for which the assembly process and solder joint reliability have not yet been fully characterized. A careful experimental investigation was undertaken to evaluate the reliability of solder joints of SAC BGA components formed using Sn-Pb solder paste. This evaluation specifically looked at the impact of package size, solder ball volume, printed circuit board (PCB) surface finish, time above liquidus and peak temperature on reliability. Four different BGA package sizes (ranging from 8 to 45 mm2) were selected with ball-to-ball pitch size ranging from 0.5mm to 1.27mm. Two different PCB finishes were used: electroless nickel immersion gold (ENIG) and organic solderability preservative (OSP) on copper. Four different profiles were developed with the maximum peak temperatures of 210oC and 215oC and time above liquidus ranging from 60 to 120 seconds using Sn-Pb paste. One profile was generated for a lead-free control. A total of 60 boards were assembled. Some of the boards were subjected to an as assembled analysis while others were subjected to an accelerated thermal cycling (ATC) test in the temperature range of -40oC to 125oC for a maximum of 3500 cycles in accordance with IPC 9701A standard. Weibull plots were created and failure analysis performed. Analysis of as-assembled solder joints revealed that for a time above liquidus of 120 seconds and below, the degree of mixing between the BGA SAC ball alloy and the Sn-Pb solder paste was less than 100 percent for packages with a ball pitch of 0.8mm or greater. Depending on package size, the peak reflow temperature was observed to have a significant impact on the solder joint microstructural homogeneity. The influence of reflow process parameters on solder joint reliability was clearly manifested in the Weibull plots. This paper provides a discussion of the impact of various profiles' characteristics on the extent of mixing between SAC and Sn-Pb solder alloys and the associated thermal cyclic fatigue performance.
SMT Barcode Inkjet Printer ETA-410 If you could not find any similar items you want, you may send some photos to us. because our catalog and website haven't included all of our products. smt barcode Inkjet Printing Machine,pcb barcode printing
Demonstration of BGA rework via stencil printing. BEST's StikNPeel stencil is an adhesive backed stencil which allows users to stick the stencil in to place and simply peel it off the PCB with a temporary adhesive system. This leaves consistent print
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SMT pick and place machine FUJI SMT Nozzle 0.5mm NXT Nozzle for FUJI NXTIII H24 Head SMT Spare Parts 2AGKNX005400 Leave a Message We will call you back soon
PCB Libraries, Inc. | https://www.pcblibraries.com/Forum/polarity-by-component-type_topic2105.html
: - SOIC - Legend dot, Assembly dot - SON - Legend dot, Assembly dot - QFN - Legend dot, Assembly dot - BGA - Legend chamfer, Assembly chamfer There are some cases with the
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